ITU-R R23-WP3L C

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ITU-R R23-WP3L C

ITU-R R23-WP3L	Max # of documents displayed/page:
Ionospheric Propagation and Radio Noise

Results:41 total items.

Contributions
	Number	Title	Source	AI/Question	Date
	[ 41 ]	Liaison statement to Working Party 3L - Invitation to review information contained in the Handbook - HF broadcasting system design	WP 6A		2025-03-17
	[ 40 ]	Revision of Question ITU-R 236/3 - Use of machine learning methods for radio-wave propagation studies	Korea (Rep. of)	Q236/3	2025-02-05
	[ 39 ]	Activity report of Correspondence Group 3J-3K-3L-3M-27 - Application of machine learning for propagation studies	Chair, CG 3J-3K-3L-3M-27		2025-01-29
	[ 38 ]	Liaison statement to Working Party 7C (copy to Working Parties 3L, 3M, 4C, 5A, 5B, 5C, 5D, 7B and 7D) - WRC-27 agenda item 1.17	WP 6A	AI1.17	2024-11-19
	[ 37 ]	Reply liaison statement to Working Party 7B (copy to Working Parties 3L, 3M, 4A, 4B, 5A, 5B, 5C, 5D, 7C and 7D) - WRC-27 agenda item 1.11	WP 4C	AI1.11	2024-10-22
	[ 36 ]	Reply liaison statement to Working Parties 3L, 3M, 4A, 4B, 5A, 5B, 5C, 6A, 7B, 7C and 7D (copy to Working Party 5D) - WRC-27 agenda item 1.13	WP 4C	AI1.13	2024-10-22
	[ 35 ]	Reply liaison statement to Working Party 4C (copy to the SG 7 Chair, the CPM Chair and to Working Parties 3L, 3M, 4B, 5A, 5C, 5D, 7B for information) - WRC-27 agenda item 1.14	WP 7C	AI1.14	2024-09-30
	[ 34 ]	Reply liaison statement to Working Party 4C (copy to Working Parties 3L, 3M, 4A, 4B, 5A, 5B, 5C, 5D, 6A, 7B, 7C for information) - Technical information to support the studies for WRC-27 agenda items 1.12 and 1.13	WP 7D	AI1.13, AI1.12	2024-09-27
	[ 33 ]	Reply liaison statement to Working Party 5B (copy to Working Parties 3L, 5C, and 6A for information and copy to ICAO for information) - Information on the standard frequency and time signal service with regards to WRC-27 agenda item 1.9 on the modernization of RR Appendix 26	WP 7A	AI1.9	2024-09-23
	[ 32 ]	Information on the preparation of texts for the draft CPM Report to WRC-27	Chair, CPM-27		2024-07-09
	[ 31 ] +Ann.1-15	Report on the meeting of Working Party 3L (Denver, Colorado, USA, 29 May - 7 June 2024)	Chair, WP 3L		2024-06-08
	[ 30 ]	Final list of participants WP 3L (Denver, Colorado, USA, 29 May - 7 June 2024)	Director, BR		2024-06-08
	[ 29 ]	List of documents issued (Documents 3L/1 - 3L/29)	BR, Study Groups Department		2024-05-31
	[ 28 ]	Reply liaison statement to Working Party 4C (copy to Working Parties 3L, 3M, 4A, 4B, 5A, 5B, 5D, 6A, 7B, 7C and 7D for information) - Fixed service characteristics for use in sharing studies under WRC-27 agenda item 1.13	WP 5C	AI1.13	2024-05-29
	[ 27 ]	Liaison statement to ITU-R Working Parties 3L, 5C, 6A and 7A (copy to ICAO for information) - Request for relevant technical information to support studies under WRC-27 agenda item 1.9 in order to review Appendix 26 of the Radio Regulations to support modernization of high-frequency spectrum use in the aeronautical mobile (OR) service	WP 5B	AI1.9	2024-05-28
	[ 26 ]	Submission of external noise data to radio noise databank - 2024	United Kingdom		2024-05-17
	[ 25 ]	Supporting documentation for MATLAB code for processing white gaussian noise recordings	United Kingdom		2024-05-17
	[ 24 ]	Ofcom's long-term radio noise measurement campaign in the United Kingdom - 2024 update	United Kingdom		2024-05-17
	[ 23 ]	Towards a set of machine learning methods for radiowave propagation modelling	Canada		2024-05-17
	[ 22 ]	Supplement for Recommendation ITU-R P.531 on modelling ionospheric scintillation occurrence variations with geomagnetic latitude	China , France		2024-05-16
	[ 21 ]	Supporting information document on Recommendation ITU-R P.1239 - Validation of computational method influence of R12 in foF2 prediction of Recommendation ITU-R P.1239 using ionospheric observations from Chinese region	China		2024-05-16
	[ 20 ]	Discussion document on the machine learning model in the field of radio wave propagation	China		2024-05-16
	[ 19 ]	Working document towards a preliminary draft revision of Recommendation ITU-R P.533-14 - Update L_y and L_z values	United States		2024-05-13
	[ 18 ]	Working document toward a preliminary draft revision of HDB-58 - Update of Handbook 58 on ITU-R propagation prediction methods for interference and sharing studies	United States		2024-05-13
	[ 17 ]	Activity Report of Correspondence Group 3M-4 - Software products, digital maps and reference numerical data products	CG 3M-4		2024-05-14
	[ 16 ]	Report on activities during April 2023 to April 2024	CG 3L-7		2024-05-05
	[ 15 ]	Preliminary draft revision of Recommendation ITU-R P.372 - Step-by-step brightness temperature method - Radio noise	CG 3L-7		2024-05-05
	[ 14 ]	Draft new fascicle on the brightness temperature prediction method in Recommendation ITU-R P.372	CG 3L-7		2024-05-05
	[ 13 ]	Correspondence Group 3L-20 Activity Report	CG 3L-20		2024-05-03
	[ 12 ]	Liaison statement to Working Parties 3L, 4B, 5A, 5C, 5D, 7B, and 7C (copy to Working Party 4A for information, and action if any) - Relevant technical information to support studies under WRC-27 agenda item 1.14	WP 4C	AI1.14	2024-05-01
	[ 11 ]	Liaison statement to Working Parties 3L, 3M, 4A, 4B, 5A, 5B, 5C, 5D, 6A, 7B, 7C and 7D - Technical information to support the studies for WRC-27 agenda item 1.13	WP 4C	AI1.13	2024-05-01
	[ 10 ]	Liaison statement to Working Parties 3L, 3M, 4B, 5A, 5B, 5C, 5D, 7B, 7C and 7D (copy to Working Party 4A for information, and action if any) - Relevant technical information to support studies under WRC-27 agenda item 1.12	WP 4C	AI1.12	2024-05-01
	[ 9 ]	Liaison statement to Working Parties 3L, 3M, 4A, 4B, 5A, 5B, 5C, 5D, 7B, 7C and 7D - WRC-27 agenda item 1.11	WP 4C	AI1.11	2024-05-01
	[ 8 ]	Liaison statement to Radiocommunication Study Groups and Working Parties (copy for information to ITU-T and ITU-D Study Groups)	Chair, CCV		2024-04-22
	[ 7 ]	Liaison statement to Working Parties 3L, 3M, 4A, 4C, 5A, 5B, 5C, 5D, 6A, 7B and 7D - Relevant technical information to support studies under WRC-27 agenda item 1.17	WP 7C	AI1.17	2024-03-25
	[ 6 ]	Liaison statement to Working Party 5B (copy to Working Parties 3L, 5C and 7A) - Protection requirements for the HF broadcasting service relative to WRC-27 agenda item 1.9	WP 6A	AI1.9	2024-03-18
	[ 5 ]	Liaison statement to Working Party 4C (copy to Working Parties 3L, 3M, 4A, 4B, 5A, 5B, 5C, 5D, 7B, 7C and 7D) - WRC-27 agenda item 1.13	WP 6A	AI1.13	2024-03-18
	[ 4 ]	Liaison statement to CPM Management Team (copy to Working Parties 3L, 3M, 4A, 4B, 4C, 5A, 5B, 5C, 5D, 7B, 7C and 7D) - WRC-27 agenda item 1.11	WP 6A	AI1.11	2024-03-18
	[ 3 ]	Liaison statement to Working Party 7C (copy to Working Parties 3L, 3M, 4A, 4C, 5A, 5B, 5C, 5D, 7B and 7D) - WRC-27 agenda item 1.17	WP 6A	AI1.17	2024-03-18
	[ 2 ]	Text from WRC-23 Plenary for the attention of the ITU-R Working Parties that are either responsible for or contributing to studies relevant to items of the WRC-27 agenda or the WRC-31 preliminary agenda	Director, BR		2024-01-30
	[ 1 ]	Documents to be carried over from the 2019-2023 Study Period	WP 3L		2023-12-06
Results:41 total items.

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